2019年mpacc考试英语真题——连词1214

{01}It took several hundred years ______ paper-making spread to western countries.

A.when

B.before

C.after

D.since

解析：连词辨析。     A．当……时    B．在……之前       C．在……之后       D自从……。
句意：造纸术花了几百年才传到西方国家。意思是在造纸术完全传到西方之前用了几百年的时间，故选B。
本题选B。
{02}Kids are not allowed to leave kindergartens       their parents come to pick them up.

A.since

B.unless

C.although

D.because

解析：连词辨析. Since由于,自从……以来；unless除非，如果不；although虽然，尽管；because因为；句意：如果他们的父母不来接他们，孩子们是不允许离开幼儿园的。结合语境可知选B。
本题选B。